NAICS 561990: All Other Support Services
This industry comprises establishments primarily engaged in providing day-to-day business and other organizational support services (except office administrative services, facilities support services, employment services, business support services, travel arrangement and reservation services, security and investigation services, services to buildings and other structures, packaging and labeling services, and convention and trade show organizing services).

Illustrative Examples:

Bartering services
Flagging (i.e., traffic control) services
Bottle exchanges
Float decorating services
Inventory taking services
Contract meter reading services
Lumber grading services
Diving services on a contract or fee basis

ExioML sector: Other business services (74)
Region: US | Year: 2022
Sector value added: 2061953.3722 M EUR | Employment: 13585.1834804 thousand persons
Sector GHG emissions: 29023033460.9 kg CO2 eq | Energy carrier net total: 1444103.87771 TJ | Carbon intensity: 0.014075504253490414

Company: National Technical Systems Inc
National Technical Systems, Inc. provides engineering and testing services. The Company offers environmental, field, radio, and hardware and software testing, as well as designing, systems engineering, and managed services. National Technical Systems serves customers worldwide.